160455

Hello,
After many attempts at beating the system, we have realised that the answers can only ever be one of the following: 9, 18, 27, 36, 45, 54, 63, 72, 81. They are all the nine times table. You can't get an answer of 82 or above and neither can you get 8 or below.
The computer changes the symbols for the numbers each game, which generates a new answer every time.